Bosch PS42BN 12 V Max Ec Brushless Impact Driver with Exact-Fit Insert Tray PRECISION: The Bosch 12V PS42BN Impact Driver offers precision and power with two speed settings for high speed and high power and low speed and low power, allowing users to match the speed to the application. COMPACT: The PS42BN is the most compact in its class with a 5.5-inch head-length and light weight design at just over two pounds. EFFICENT: Featuring an EC Brushless motor, the PS42BN offers greater motor efficiency and completes 85 percent of most common jobsite applications. POWER: The impact driver delivers 975-inch-lbs. of max torque and no-load rpm ratings of 0-1,200 and 0-2,600 and no-load impacts-per-minute ratings of 0-2,700 and 0-3,100. STORAGE: The Bosch PS42BN Impact Driver comes complete with a Custom Exact-Fit L-BOXX b inlay for ideal tool storage and organization.